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110 changes: 110 additions & 0 deletions
110
...ava/thecodex6824/thaumcraftfix/core/transformer/custom/BlockPillarDropFixTransformer.java
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/** | ||
* Thaumcraft Fix | ||
* Copyright (c) 2024 TheCodex6824. | ||
* | ||
* This file is part of Thaumcraft Fix. | ||
* | ||
* Thaumcraft Fix is free software: you can redistribute it and/or modify | ||
* it under the terms of the GNU Lesser General Public License as published by | ||
* the Free Software Foundation, either version 3 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* Thaumcraft Fix is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
* GNU Lesser General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Lesser General Public License | ||
* along with Thaumcraft Fix. If not, see <https://www.gnu.org/licenses/>. | ||
*/ | ||
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package thecodex6824.thaumcraftfix.core.transformer.custom; | ||
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import org.objectweb.asm.Opcodes; | ||
import org.objectweb.asm.Type; | ||
import org.objectweb.asm.tree.ClassNode; | ||
import org.objectweb.asm.tree.InsnNode; | ||
import org.objectweb.asm.tree.MethodInsnNode; | ||
import org.objectweb.asm.tree.MethodNode; | ||
import org.objectweb.asm.tree.VarInsnNode; | ||
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import net.minecraft.block.state.IBlockState; | ||
import net.minecraft.item.Item; | ||
import thaumcraft.api.blocks.BlocksTC; | ||
import thecodex6824.coremodlib.MethodDefinition; | ||
import thecodex6824.thaumcraftfix.core.transformer.ITransformer; | ||
import thecodex6824.thaumcraftfix.core.transformer.TransformUtil; | ||
import thecodex6824.thaumcraftfix.core.transformer.Types; | ||
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public class BlockPillarDropFixTransformer implements ITransformer { | ||
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private static final String PILLAR = "thaumcraft/common/blocks/basic/BlockPillar"; | ||
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public static final class Hooks { | ||
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public static Item itemDropped(IBlockState state) { | ||
Item ret = null; | ||
if (state.getBlock() == BlocksTC.pillarAncient) { | ||
ret = Item.getItemFromBlock(BlocksTC.stoneAncient); | ||
} | ||
else if (state.getBlock() == BlocksTC.pillarEldritch) { | ||
ret = Item.getItemFromBlock(BlocksTC.stoneEldritchTile); | ||
} | ||
else { | ||
ret = Item.getItemFromBlock(BlocksTC.stoneArcane); | ||
} | ||
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return ret; | ||
} | ||
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} | ||
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@Override | ||
public boolean isTransformationNeeded(String transformedName) { | ||
return "thaumcraft.common.blocks.basic.BlockPillar".equals(transformedName); | ||
} | ||
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@Override | ||
public boolean transform(ClassNode classNode, String name, String transformedName) { | ||
MethodNode itemDropped = TransformUtil.findMethod(classNode, TransformUtil.remapMethod(new MethodDefinition( | ||
PILLAR, | ||
false, | ||
"func_180660_a", | ||
Types.ITEM, | ||
Types.I_BLOCK_STATE, Types.RANDOM, Type.INT_TYPE | ||
))); | ||
itemDropped.instructions.clear(); | ||
itemDropped.instructions.add(new VarInsnNode(Opcodes.ALOAD, 1)); | ||
itemDropped.instructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, | ||
Type.getInternalName(Hooks.class), | ||
"itemDropped", | ||
Type.getMethodDescriptor(Types.ITEM, Types.I_BLOCK_STATE), | ||
false | ||
)); | ||
itemDropped.instructions.add(new InsnNode(Opcodes.ARETURN)); | ||
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MethodNode quantityDropped = TransformUtil.remapMethod(new MethodDefinition( | ||
PILLAR, | ||
false, | ||
"func_149745_a", | ||
Type.INT_TYPE, | ||
Types.RANDOM | ||
)).createNewMethodNode(Opcodes.ACC_PUBLIC); | ||
quantityDropped.instructions.add(new InsnNode(Opcodes.ICONST_2)); | ||
quantityDropped.instructions.add(new InsnNode(Opcodes.IRETURN)); | ||
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MethodDefinition breakBlock = TransformUtil.remapMethod(new MethodDefinition( | ||
PILLAR, | ||
false, | ||
"func_180663_b", | ||
Type.VOID_TYPE, | ||
Types.WORLD, Types.BLOCK_POS, Types.I_BLOCK_STATE | ||
)); | ||
classNode.methods.removeIf(m -> m.name.equals(breakBlock.name()) && | ||
m.desc.equals(breakBlock.desc())); | ||
classNode.methods.add(quantityDropped); | ||
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return true; | ||
} | ||
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} |
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46 changes: 46 additions & 0 deletions
46
...n/java/thecodex6824/thaumcraftfix/core/transformer/custom/ThrowingTransformerWrapper.java
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package thecodex6824.thaumcraftfix.core.transformer.custom; | ||
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import org.objectweb.asm.tree.ClassNode; | ||
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import thecodex6824.coremodlib.ASMUtil; | ||
import thecodex6824.thaumcraftfix.core.ThaumcraftFixCore; | ||
import thecodex6824.thaumcraftfix.core.transformer.ITransformer; | ||
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public class ThrowingTransformerWrapper implements ITransformer { | ||
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private ITransformer wrapped; | ||
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public ThrowingTransformerWrapper(ITransformer toWrap) { | ||
wrapped = toWrap; | ||
} | ||
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@Override | ||
public boolean isTransformationNeeded(String transformedName) { | ||
return wrapped.isTransformationNeeded(transformedName); | ||
} | ||
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@Override | ||
public boolean transform(ClassNode classNode, String name, String transformedName) { | ||
String origClassDump = ASMUtil.dumpClass(classNode); | ||
Throwable toRethrow = null; | ||
try { | ||
if (!wrapped.transform(classNode, name, transformedName)) { | ||
toRethrow = new RuntimeException("Patch returned false"); | ||
} | ||
} | ||
catch (Throwable anything) { | ||
toRethrow = anything; | ||
} | ||
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if (toRethrow != null) { | ||
ThaumcraftFixCore.getLogger().error("Class dump before changes:"); | ||
ThaumcraftFixCore.getLogger().error(origClassDump); | ||
ThaumcraftFixCore.getLogger().error("Class dump after changes:"); | ||
ThaumcraftFixCore.getLogger().error(ASMUtil.dumpClass(classNode)); | ||
throw new RuntimeException(toRethrow); | ||
} | ||
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return true; | ||
} | ||
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} |
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